If you are a Small Business customer, find additional troubleshooting and learning resources at the Support for Small Business site.

You use Microsoft RoundTable to record multichannel audio in a quiet conference room, and then you play the audio file. After you do this, some parts of the audio file are missing, and the audio file has lots of echo.

This problem occurs because of a fault in the audio digital signal processor (ADSP) driver. The fault in the ADSP driver affects the acoustic echo cancellation (AEC) feature of Microsoft RoundTable. This behavior causes an echo in the audio file.